AsyncTaskLoader Class
Definition
Important
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Abstract Loader that provides an AsyncTask to do the work.
[Android.Runtime.Register("android/content/AsyncTaskLoader", DoNotGenerateAcw=true)]
[Java.Interop.JavaTypeParameters(new System.String[] { "D" })]
public abstract class AsyncTaskLoader : Android.Content.Loader[<Android.Runtime.Register("android/content/AsyncTaskLoader", DoNotGenerateAcw=true)>]
[<Java.Interop.JavaTypeParameters(new System.String[] { "D" })>]
type AsyncTaskLoader = class
inherit Loader- Inheritance
- Derived
- Attributes
Remarks
Abstract Loader that provides an AsyncTask to do the work. See Loader and android.app.LoaderManager for more details.
Here is an example implementation of an AsyncTaskLoader subclass that loads the currently installed applications from the package manager. This implementation takes care of retrieving the application labels and sorting its result set from them, monitoring for changes to the installed applications, and rebuilding the list when a change in configuration requires this (such as a locale change).
{
This member is deprecated. Use the Support Libraryandroidx.loader.content.AsyncTaskLoader
Java documentation for android.content.AsyncTaskLoader.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Constructors
| AsyncTaskLoader(Context) | |
| AsyncTaskLoader(IntPtr, JniHandleOwnership) |
A constructor used when creating managed representations of JNI objects; called by the runtime. |
Properties
| Class |
Returns the runtime class of this |
| Context | (Inherited from Loader) |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| Id | (Inherited from Loader) |
| IsAbandoned |
Return whether this loader has been abandoned. (Inherited from Loader) |
| IsLoadInBackgroundCanceled |
Returns true if the current invocation of |
| IsReset |
Return whether this load has been reset. (Inherited from Loader) |
| IsStarted |
Return whether this load has been started. (Inherited from Loader) |
| JniIdentityHashCode | (Inherited from Object) |
| JniPeerMembers | |
| PeerReference | (Inherited from Object) |
| ThresholdClass |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. |
| ThresholdType |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. |
Methods
| Abandon() |
This function will normally be called for you automatically by
|
| CancelLoad() | |
| CancelLoadInBackground() |
Called on the main thread to abort a load in progress. |
| Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
| CommitContentChanged() |
Commit that you have actually fully processed a content change that
was returned by |
| DataToString(Object) |
For debugging, converts an instance of the Loader's data class to a string that can be printed. (Inherited from Loader) |
| DeliverCancellation() |
Informs the registered |
| DeliverResult(Object) |
Sends the result of the load to the registered listener. (Inherited from Loader) |
| Dispose() | (Inherited from Object) |
| Dispose(Boolean) | (Inherited from Object) |
| Dump(String, FileDescriptor, PrintWriter, String[]) |
Print the Loader's state into the given stream. (Inherited from Loader) |
| DumpAsync(String, FileDescriptor, PrintWriter, String[]) | (Inherited from Loader) |
| Equals(Object) |
Indicates whether some other object is "equal to" this one. (Inherited from Object) |
| ForceLoad() |
Force an asynchronous load. (Inherited from Loader) |
| GetHashCode() |
Returns a hash code value for the object. (Inherited from Object) |
| JavaFinalize() |
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object) |
| LoadInBackground() |
Called on a worker thread to perform the actual load and to return the result of the load operation. |
| Notify() |
Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object) |
| NotifyAll() |
Wakes up all threads that are waiting on this object's monitor. (Inherited from Object) |
| OnAbandon() |
Subclasses implement this to take care of being abandoned. (Inherited from Loader) |
| OnCanceled(Object) |
Called if the task was canceled before it was completed. |
| OnCancelLoad() |
Subclasses must implement this to take care of requests to |
| OnContentChanged() |
Called when |
| OnForceLoad() |
Subclasses must implement this to take care of requests to |
| OnLoadInBackground() |
Calls |
| OnReset() |
Subclasses must implement this to take care of resetting their loader,
as per |
| OnStartLoading() |
Subclasses must implement this to take care of loading their data,
as per |
| OnStopLoading() |
Subclasses must implement this to take care of stopping their loader,
as per |
| RegisterListener(Int32, Loader+IOnLoadCompleteListener) |
Registers a class that will receive callbacks when a load is complete. (Inherited from Loader) |
| RegisterOnLoadCanceledListener(Loader+IOnLoadCanceledListener) |
Registers a listener that will receive callbacks when a load is canceled. (Inherited from Loader) |
| Reset() |
This function will normally be called for you automatically by
|
| RollbackContentChanged() |
Report that you have abandoned the processing of a content change that
was returned by |
| SetHandle(IntPtr, JniHandleOwnership) |
Sets the Handle property. (Inherited from Object) |
| SetUpdateThrottle(Int64) |
Set amount to throttle updates by. |
| StartLoading() |
This function will normally be called for you automatically by
|
| StopLoading() |
This function will normally be called for you automatically by
|
| TakeContentChanged() |
Take the current flag indicating whether the loader's content had changed while it was stopped. (Inherited from Loader) |
| ToArray<T>() | (Inherited from Object) |
| ToString() |
Returns a string representation of the object. (Inherited from Object) |
| UnregisterFromRuntime() | (Inherited from Object) |
| UnregisterListener(Loader+IOnLoadCompleteListener) |
Remove a listener that was previously added with |
| UnregisterOnLoadCanceledListener(Loader+IOnLoadCanceledListener) |
Unregisters a listener that was previously added with
|
| Wait() |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object) |
| Wait(Int64, Int32) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| Wait(Int64) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
Explicit Interface Implementations
| IJavaPeerable.Disposed() | (Inherited from Object) |
| IJavaPeerable.DisposeUnlessReferenced() | (Inherited from Object) |
| IJavaPeerable.Finalized() | (Inherited from Object) |
| IJavaPeerable.JniManagedPeerState | (Inherited from Object) |
| IJavaPeerable.SetJniIdentityHashCode(Int32) | (Inherited from Object) |
| IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) | (Inherited from Object) |
| IJavaPeerable.SetPeerReference(JniObjectReference) | (Inherited from Object) |
Extension Methods
| JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
| JavaCast<TResult>(IJavaObject) | |
| GetJniTypeName(IJavaPeerable) | |